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Austin Water Filters

Water filtration in Georgetown

Georgetown's water hardness depends on which treatment plant serves your area. That's unusual, and it's a big deal when you're deciding what to install.

The city's Georgetown Utility Systems pulls from Lake Georgetown, Stillhouse Hollow Lake, groundwater, and Lake Travis water bought from Leander and Round Rock.

Your first step

Free water test

  • Tested at your tap in Georgetown
  • Compared with your utility's latest report
  • Written quote, no pressure

Installed systems start around $600. See pricing

Hardness varies by plant

According to the city, water from the Lake Georgetown and Southlake plants runs about 176 to 178 mg/L, around 10 to 11 grains per gallon. Water from the Park and Southside plants runs about 309 to 320 mg/L, around 19 grains per gallon.

Both are very hard. The second is among the hardest city water in the metro. Softeners are common in Georgetown for good reason.

Other notes from the 2025 report

Georgetown does not add fluoride. In federal UCMR5 testing, the city reported single samples of PFOA and PFOS above the new 4 ppt federal limit, while the averages were well below it. The full table is in the report.

The report lists total chlorine at about 3 ppm on average.

Georgetown neighborhoods

Coverage includes Sun City, Wolf Ranch, Berry Creek, Georgetown Village, Old Town, and the rest of Georgetown. Some areas on the east side are served by Jonah Water SUD rather than the city, so check your bill.

Best fits for Georgetown homes

Free water test in Georgetown

What happens next

  1. We pass your request to a local water treatment installer.
  2. They call you to pick a time for the free test.
  3. At your home they test the water and give you a written quote. You decide from there.

We share your request with our local installation partner so they can call you about your free water test and quote. See our privacy policy.

Georgetown water questions

How hard is Georgetown water?

Very hard. The city says it's about 10 to 11 grains per gallon from the Lake Georgetown and Southlake plants and about 19 grains per gallon from the Park and Southside plants.

Does Georgetown add fluoride?

No. The 2025 report says fluoride is not added by the city. Low natural levels are present.

How do I know which plant serves my house?

Georgetown Utility Systems can tell you. The free water test also measures hardness at your tap, which settles it either way.

Other services in Georgetown

Nearby cities

See every city we serve

Find out what's in your Georgetown water

Request a free in home water test. A local installer checks hardness, chlorine or chloramine, and dissolved solids at your tap, then gives you a written quote.

Request a free test